Artificial fuel



UNITED STATES PATENT OFFICEO JASON I. IRVING, OF SAN FRANCISCO,CALIFORNIA.

ARTIFICIAL FUEL. I

SPECIFICATION forming part of Letters Patent No, 374,679, dated December13, 1887.

Application filed February 18, 1887. Serial No. 228,025. (No'specimens.)

To all whom it may concern.-

Be it known that I, JASON I. IRVING, a citizen of the United States,residing in the city and county of San Francisco, and State ofCalifornia, have invented a new and useful ID1- provement in Fuel, ofwhich the following is a specification. Y

My invention relates to improvements in artificial fuel; and it consistsin the compounding of coal-dust and fine coal with Indian-corn meal,flour, or other gelatinous substances and unslaked lime and nitrate ofpotassa, in the following proportions: to one ton of coal-dust thirtypounds of Indian-corn meal, ten pounds of unslaked lime, and one poundof nitrate of poiassa. The whole is suffioiently moistened to be kneadedlike bread-dough. It may then be made into convenient size for anyrequired fuel, either by pressing in molds or by other mechanicaldevice.

The following' is the operation of preparing my improved fuel: Icompound and mix the same as above stated, then form the fuel as required, and place to dry either inovens or b other convenient process ofdrying.

I am aware that when properly mixed and placed in the fire over theheated grate it will cake and become like coke in appearance,and may beused in that form to some advantage, when it is simply compoundedwithout forming into blocks orlumps for fuel. I therefore do not confinemyself to any form of fuel blocks or lumps.

I am also aware that some of the ingredients have been employed in themanufacture of fuel; but,

Having thus described my invention,whatI claim, and desire to secure byLetters Patent,

Cornmcal or other grain-flour, lime, and nitrate of potassa, incombination with coaldust for the purpose of causing the requiredcohesion, the whole being composed and prepared as and for the purposesset forth.

JASON I. IRVING.

Witnesses:

J. H. REDSTONE, L. E. REDs'roNE.

